CN101501379A - High overpressure vent structure having spring steel recloser panel - Google Patents

High overpressure vent structure having spring steel recloser panel Download PDF

Info

Publication number
CN101501379A
CN101501379A CNA200780030296XA CN200780030296A CN101501379A CN 101501379 A CN101501379 A CN 101501379A CN A200780030296X A CNA200780030296X A CN A200780030296XA CN 200780030296 A CN200780030296 A CN 200780030296A CN 101501379 A CN101501379 A CN 101501379A
Authority
CN
China
Prior art keywords
recloser panel
escape orifice
panel
recloser
vent unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA200780030296XA
Other languages
Chinese (zh)
Other versions
CN101501379B (en
Inventor
T·艾杰克兰伯格
G·加库斯
G·多姆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fike Corp
Original Assignee
Fike Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fike Corp filed Critical Fike Corp
Publication of CN101501379A publication Critical patent/CN101501379A/en
Application granted granted Critical
Publication of CN101501379B publication Critical patent/CN101501379B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/085—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
    • F16K13/04—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1684—With alarm or indicator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1714—Direct pressure causes disc to burst
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1744—Specific weakening point
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8811—Frangible

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

Apparatus for protecting a confined space having a vent aperture for relief of an overpressure condition and provided with a vent unit having a pressure relief portion normally closing the vent aperture is provided with recloser structure for generally closing off the vent aperture in the event of opening of the pressure relief portion of the vent unit. The recloser structure includes a resilient, flexible, spring steel recloser panel that is normally held in a bent condition out of closing relationship to the vent aperture. Releasable mechanism engages the recloser panel for normally retaining the panel in its open position. An actuator is connected to the releasable mechanism for actuating the latter to release the recloser panel for movement as a function of its inherent resilience into substantially closing relationship to the vent aperture after the relief portion of the vent unit has opened.

Description

High overpressure vent structure with spring steel recloser panel
Background technique
Technical field
The present invention relates to be used to protect the improvement of the bleeder of restricted clearance, this modifying device has the escape orifice that is used to remove overvoltage condition.Conventional bleeder is particularly useful for covering the pressure relief openings that stands on the closure that rapid pressure rises, this rapid pressure rise such as may occur in dust precipitation chamber, the support of pipelines that is communicated with dust precipitation chamber, processing equipment, lead to and from support of pipelines, building, the pressurized container of processing equipment and may produce the blast of over-pressure or the commercial and industrial facility of other type of uncontrolled combustion incident in blast or the process of uncontrolled combustion incident among.
The bleeder of described type has comprise the vent portion of fully opening in the protected field when the predetermined overpressure condition that takes place such as blast or uncontrolled fire, discharge excessive overvoltage thus and prevent to otherwise can stand the unfavorable damage of the equipment, container, support of pipelines, building structure etc. of potential catastrophic over-voltage events.
More particularly; the present invention relates to high overpressure vent structure; this structure has the release part of escape orifice of sealing protected field, and this release part comprises that also the pressure of vent unit at least roughly seals the reclosing structure of escape orifice under situation about opening under the preselected overpressure state.The reclosing structure comprises spring steel escape orifice recloser panel, and the location of escape orifice is not closed in the common maintenance of this recloser panel, but the release of vent unit can be according to its intrinsic elastic movement of spring steel to the position of closing escape orifice after partially opening.
The advantage of closing escape orifice by the reclosing structure after main vent unit is opened again comprises:
-eliminate or reduce the intrusion of air and eliminate or reduce the intrusion of oxygen thus, if therefore alleviate the protected field still is exposed to the secondary explosion that surrounding environment produces by vent openings influence;
-prevent to cause the burning away of processing material of permanent damages to protected facility;
-using inert gas, water smoke etc. as under the situation of extinguishing agent, because the combustion gas/flame that produces can not can improve the inhibition to flame/fire by the fact of escape orifice effusion; And
The pollution of the protected processing region of-reduction/elimination.
But releasing mechanism is arranged to cooperate with plate, and retaining plate is in its bent state usually, not in the location of closing escape orifice.But actuator is connected to releasing mechanism to be discharged plate when being implemented in the order of receiving from sensing unit, and the sensing unit senses vent unit is because the opening of overvoltage condition.
Prior art
Explosion-proof bleed outlet is typically provided with the tinsel that can break, and this tinsel has the line of weakness of the line of weakness that limits the relief area that forms bleed outlet or the slit of interruption.The amount of wherein opening the needed overvoltage of relief area of explosion-proof bleed outlet is decided by following factor: type, thickness and the physical property of the metal of the explosion-proof bleed outlet of selected manufacturing, the shape of line of weakness and character, the location of line of weakness on the general area of explosion-proof bleed outlet, and the normally setting of the array of spaced cross shaped joint above line of weakness to be scheduled to dispose relatively.
U. S. Patent the 6th, 070, shown in No. 365 and described such exemplary explosion-proof bleed outlet, wherein the rectangle relief panel is installed in and is suitable for across on the fixing framework of pressure relief openings.The integral type relief panel is made by monolithic steel, stainless steel, chromium ferronickel nickel alloy or other similar material plate, and has three line of weakness that limited by a plurality of interruption slits.The array of spaced rupture tab that is arranged on the line of weakness top shown in the patent of ' 365 must broken before the surrender under the predetermined over-pressure that be produced by blast or rapid combustion fire in the relief area of plate.
U. S. Patent the 5th, 036, No. 632 is another example with explosion-proof bleed outlet of conventional rectangular metal sheet of three line of weakness that limited by the interruption slit.One deck synthetic resin material can be set to be waited and covers line of weakness slots.' but 632 patents illustrate and describe on the bleed outlet of type and also be provided with rupture tab, ruptured before discharging overvoltage but should rupture tab must break along the slit line at the core of plate.Can the elastic packing packing ring be set around the periphery of the tinsel that can break.
The U. S. Patent of mentioning in the disclosure of ' 632 patent the 4th, 498, No. 261 is the rectangular vent plate of opening under low relatively pressure, wherein flake structure is described as moderate impact-resistant polystyrene, soft relatively metal or dead annealed stainless steel such as aluminum alloy.The X pattern slit that interrupts extends through bleed plate and limits each root line of weakness on the summit that ends at X.The thin seal dissepiment that area is identical with fracture plate adhesively is bonded to fracture plate, and can be formed of polyethylene, stainless steel, or aluminum.U. S. Patent the 4th, 612 is shown in 739 and describe similar structure.
Although the prior art release discharge structure of described type is opened satisfactorily really and discharged the interior predetermined overpressure condition of protected space, these discharge structures stay open, and make restricted clearance can continue sensible ambient atmosphere thus.After blast or fire were gone out and discharged high pressure, directly available by escape orifice from the oxygen of atmosphere, this can produce the deterioration of secondary explosion, fire or lighting once more of fire at products of combustion.
Summary of the invention
Usually be provided for protecting the device of restricted clearance, this device has the escape orifice that is used to remove overvoltage condition.The device of the type comprises having the vent unit of sealing ground across the release part of escape orifice.Open during the preselected overpressure of the release of vent unit part in standing the protected field.
The present invention improves the conventional bleeder that is used to remove the over-pressure state by the reclosing structure is set, and the reclosing structure is used at least roughly sealing escape orifice in the release part of vent unit under situation about opening under the preselected overpressure state.The reclosing structure comprises the resilient flexibility Steel Spring Plate, and this Steel Spring Plate is in configuration and the position of cutting out escape orifice at least basically in its normal state.Steel Spring Plate is crooked and be arranged to not cut out basically at it location of the position of escape orifice away from escape orifice.But tripping-gear cooperates with common retaining plate with plate and is in the location that it does not close escape orifice.But actuator is connected to tripping-gear; be used in the release of vent unit part since the above-mentioned preselected overpressure in the protected field opened after, activate this mechanism and allow it close the described position of escape orifice from described setting movement basically to it according to its intrinsic elasticity to unclamp recloser panel.
Sensor preferably is arranged to related with the vent unit of bleeder, and sensor can be operated with the release of sensing vent unit part owing to explode or the unfavorable over-pressure state of the products of combustion of rapid combustion fire and so on produces opens.Sensor is operably connected to actuator to realize that actuator unclamps the operation that plate is closed the position of escape orifice to allow it turn back to when release that sensor detects vent unit partially opens.Actuator response is in unclamping to allow it swing to and close escape orifice from the controlled Steel Spring Plate that only just will remain on usually after the predetermined variable time lag away from the escape orifice position of making of the operation of the signal of sensor.
In preferred embodiment; cable structure can be connected to the flexure spring steel plate and not close the escape orifice of protected structure to keep Steel Spring Plate; actuating structure is arranged to related with cable structure to unclamp hawser according to instruction, makes the flexure spring steel plate can put go back to the position of the escape orifice of closing the protected field basically thus.
Description of drawings
Fig. 1 is the planimetric map with bleeder of vent unit, vent unit is provided with the release part of the escape orifice of normally closed protected structure, wherein this device comprises escape orifice reclosing structure, but this structure has crooked and remain on the flexure spring steel plate that it often beats the position by the selectivity tripping-gear away from escape orifice, but but tripping-gear comprises the shut-off means that is used to cut off hawser of the part of formation tripping-gear;
Fig. 2 is the schematic basically side view of the bleeder of Fig. 1, flexure spring steel recloser panel is shown is in its affined bending position;
Fig. 3 is the schematic side elevation of the bleeder of Fig. 1 and 2, illustrate vent unit under predetermined excess pressure, open after Steel Spring Plate be in its escape orifice closed position;
But Fig. 4 is the partial enlarged drawing that is connected to one of the plate confining part of selectivity tripping-gear;
Fig. 5 is the local figure of amplification of the part of flexure spring steel plate, and the mode on the vent unit that plate is installed to bleeder is shown;
Fig. 6 be used for the flexure spring steel plate the maintenance hawser a part and be used for unclamping hawser and amplification, the schematic sectional view basically of the spiral piping arrangement of trip spring steel plate thus according to Instruction Selection ground; And
Fig. 7 is that hawser shown in Figure 6 keeps and horizontal cross is amplified in the part of tripping-gear.
Embodiment
Bleeder device 10 of the present invention shown in Fig. 1 and 2 is suitable for being mounted to normally closed formation and needs protection with the structural escape orifice in the zone of avoiding unfavorable over-voltage events influence.
The structure of protected field can for example be installed and be fixed to rectangular metal frame element 12 around the escape orifice of structure.Framing component 12 can have the leg section section 14 that limits chamber usually; leg section section 14 is fixed to the protected field structure around the escape orifice ground of align structures, and the end away from the protected field structure of the flange segment 16 of framing component 12 and leg section section 14 is one and outwards gives prominence to from this end of leg section section 14.Should be appreciated that in this respect framing component 12 only is exemplary, and a plurality of different parts are set bleeder 10 is fixed on the protected structure with the corresponding escape orifice of protected structure with aiming at.
Rectangular vent unit hold-down member 18 can be set, and it is placed on the flange segment 16 of framing component 12.Setting is fixed to the outer surface of flange segment 16 and extends through a series of stud bolts 20 of respective openings on the flange segment 16, and stud bolt 20 has related gland nut 22.
Conventional composite laminate vent unit 24 is clipped between flange segment 16 and the pressed component 18 and the outside dimension with the peripheral dimensions that approximates flange segment 16 and pressed component 18 greatly.Vent unit 24 as shown in Figure 5 can for example comprise a pair of bleed plate of being made by stainless steel, chromium ferronickel nickel alloy, titanium, nickel or hastelloy (Hastelloy) or metalloid 26 and 28, this to bleed plate separately by middle emulsion sheet 30, this centre emulsion sheet is by for example PEP (FEP) or alternatively made by polytetrafluoroethylene (PTFE) or perfluoroalkoxy (PFA).The stainless steel raw material that is fit to can comprise type 301,304,316,316L and 316LT.Bleed plate 26 and 28 has usually and limits the end-to-end slit of array of spaced of U-shaped line of weakness 32 basically, and line of weakness 32 forms the release part 34 of each bleed plate 26 and 28.Each line of weakness 32 form the respective hinge zone of release part 34 away from the end of its gulf portion.Middle emulsion sheet 30 is used to cover and seal the slit that limits the line of weakness 32 on the bleed plate 26 and 28.
In the preferred embodiment of bleeder 10; as the technician in explosion-proof bleed plate field was known, bleed plate 26 and 28 can be made and be constituted spacing between the slit of line of weakness 32 and be adjusted to the release part 34 of guaranteeing bleed plate 26 and 28 when the pressure of protected field inner accumulated reaches the predetermined excess pressure value and open by the gap that cuts off between the adjacent slots by the raw metal of all kinds, thickness and physical property. Exemplary vent plate 26 and 28 can be made by selected metal, and preferred materials is 1.4301 stainless steels, and it has the thickness of about 0.2mm to about 0.6mm, and preferably is about 0.4mm.Middle emulsion sheet 30 thickness can be for example for about 0.250mm and preferably from about 0.0125mm to about 0.30mm.
Escape orifice reclosing structure 36 preferably comprises the recloser panel of being made by cold rolling type 1.4310 rustproof spring steels 38, thickness for about 0.6mm to about 1.2mm and be about 0.8mm best.The described yield point of recloser panel and the difference between the tensile strength are not more than about 30%.Preferably, the yield point of recloser panel and tensile strength are respectively at least about 1200N/mm 2And 1450N/mm 2Can buy the exemplary spring steel material of the vent unit 62 that can be used for making bleeder 30 from the precision metallic (PrecisionMetals) of Mechelen, Belgium (Mechelen) M.V.B-2800, comprise: the cold rolling EN10088-2 of stainless steel austenite 1.4310 C1300-, tensile strength is 1404-1463N/mm 2, hardness is 431-446HV and elongation percentage (A80mm%) 11.5-16.5; EN10151 AMS 5519, tensile strength is 1440-1460N/mm 2, hardness is 465-468HV and elongation percentage (A80mm%) 13-16; And the EN10151 type, (a) tensile strength is 1325N/mm 2, hardness is 403HV and elongation percentage (A80mm%) A50:9; (b) tensile strength is 1412-1428N/mm 2, hardness is 429-431HV and elongation percentage (A80mm%) 1.2; (c) tensile strength is 1397N/mm 2, hardness is 423HV and elongation percentage (A80mm%) A50:4; (d) tensile strength is 1410-1414N/mm 2, hardness is 400-402HV and elongation percentage (A80mm%) 1.4; And (e) tensile strength is 1380-1382N/mm 2, hardness is 441HV and elongation percentage (A80mm%) 16-18.
The end edge portion 38a of recloser panel 38 is clipped between the parts of shank 18a of the flange segment 16a that comprises framing component 12 and pressed component 18.The stud bolt 20 and the nut 22 on it that are fixed to flange segment 16a are used for the edge section 38a of recloser panel 38 is attached to framing component 12 and pressed component 18 securely.The remaining part 38b that observes recloser panel 38 from Fig. 2 is along crooked away from the direction of vent unit 24 and be the continuous bend configuration.All the other sections 38b of the ratio of curvature part 38b of the sections 38b ' that edge section 38a curved section 38b and recloser panel is adjacent are " big.
But releasing mechanism 39 is arranged to cooperate with recloser panel 38, keeps recloser panel to be in as shown in Figure 2 its curved configuration usually, does not close escape orifice.Mechanism 39 comprises elongate rod 40, and this elongate rod 40 is attached to the sections 38b of the part 38b of recloser panel 38 " the outer surface opposite with vent unit 34, and preferably extend the whole width of recloser panel 38 basically.Bar 40 is provided with the opening 42 of two the interval broads adjacent with its opposite end, and they admit the respective members of outside thread stud bolt 44a and 44b form, and outside thread stud bolt 44a and 44b are welded to the rear surface of the part 38b of recloser panel 38.Each stud bolt 44a and 44b extend beyond the outer surface of bar 40.Be adjacent on each stud bolt 44a and 44b, packing ring 46 is set with bar 40.Each stud bolt 44a and 44b go up and packing ring 46 is adjacent to be connected with nut 48.Keep structure 49 to comprise elongated cable 50, but form the part of tripping-gear 39.One end of hawser 50 curves himself to go up with formation and is clipped in ring 50a between stud bolt 44a upper gasket 52 and 54.External nut 56 cooperates with packing ring 54 on the stud bolt 44a and with the recline end ring 50a of hawser 50 of packing ring 52 and 54.Similarly, the nut that keeps the hawser part 58 of structure 49 to have being clipped in stud bolt 44b and on packing ring between curve ring on himself, it is similar that it clamps clamping of cable loop 50a on mode and the stud bolt 44a.Hawser part 58 be connected to the intermediate portion of hawser 50 by cable clamp 60 away from the end of stud bolt 44b.
As can be seen from Figure 1, for example the stretched portion 50b of the hawser 50 that is linked by cable clamp 60 forms the parts that general triangular concerns with hawser part 58 and bar 40 relatedly, make the confining force on the outermost end of recloser panel 38 be balanced basically, recloser panel 38 can not tilted.
The most external free end of the part 50c of hawser 50 again to bend to himself go up and around reel 62 around.Cable clamp 64 is the adjacent portion of hawser part 50c fixedly.Setting device 66 is to be used for cutting off according to instruction the part 50c of hawser 50.Device 66 can comprise cutting unit 68, and this cutting unit 68 has hawser part 50c is cut off in cooperation with the position between anchor clamps 60 and anchor clamps 64 phase counter blade.
The sensor 70 of conventional configurations preferably is arranged to related with framing component 12.Sensor 70 can be operated release part 34 the opening under predetermined excess pressure with sensing bleed plate 26 and 28.Sensor 70 can be optics, magnetic or cut off line style (severed wire type).When opening, the release part 34 of bleed plate 26 and 28 produces the electrical signal of the operation of control gear 66 with the cutting of realization hawser part 50c by sensor 70.When cutting off hawser part 50c, the intrinsic elasticity of recloser panel 38 makes plate move to as shown in Figure 3 position, the board member 72 inside in the outermost end of this position recloser panel 38 and direction cooperates, this plate hook spare is fixed in the inner surface relative with the edge section 38a of recloser panel 38 of leg section section 14, seals escape orifice thus basically.The position of bleed plate 26 and 28 in lid 30 turns back to its framing component 12; although usually owing to remove the position that the strong power that is applied in the process of overvoltage condition in the protected field on the vent unit 24 is in obvious distortion, what illustrate as schematically shown in Figure 3 is such.
Bleeder 10 can be compiled into make sense release part 34 since in the predetermined time interval after the predetermined overpressure condition by device 66 do not start cut off hawser 50 also thus recloser panel 36 do not close escape orifice.For example, in some facility of bleeder 10, discharge reclosing structure 36 and be pivoted to the escape orifice of closing protected structure and may not reach five seconds, if perhaps the specific user need can be even the longer period.
In the alternate embodiment shown in Fig. 6 and 7, use the substitute of electromechanical device 166 as device 66.In this case, the outer segments of the part 150d of hawser 150 is around the spring of solenoid 176 armature 174 loopers biasing, that often open.When the power withdrawal of armature 174 antagonistic spring 178 during in the electric command signal that receives from sensor 70, the ring 150d of hawser part 150c unclamps from armature 174, and recloser panel 38 can be closed as previously mentioned.
Another bleeder 110 of the present invention shown in Figure 8 only is that with the difference of bleeder 10 framing component 112, vent unit 124 and recloser panel 138 all are circular in configuration rather than are rectangle as other embodiments of the invention.The operation of bleeder 110 the present invention with Fig. 1-7 basically is identical, and the hawser part 150 that is connected to recloser panel 138 is cut off by shutdown mechanism from such as the instruction of the sensor of sensor 70 time or unclamped by the solenoid that is similar to solenoid 166 receiving.But, consider the narrower a little edge section 138a of the recloser panel 138 of device 110, may need thicker a little spring steel material to guarantee that recloser panel 138 closing fully when unclamp its position that is tied usually as shown in Figure 7.

Claims (27)

1. device that is used to protect restricted clearance; described device has and is used to remove the escape orifice of overvoltage condition and is provided with vent unit; described vent unit has across the described escape orifice and the release part of closing described escape orifice and opening during the preselected overpressure in standing described protected space, and described device comprises:
Reclosing structure, described reclosing structure are used at least roughly closing described escape orifice in the described release part of described vent unit under situation about opening under the described preselected overpressure,
Described structure comprises the resilient flexibility recloser panel, and described recloser panel is in configuration and the position of closing described escape orifice at least basically in its normal state,
Described recloser panel is crooked and be arranged to not close basically at it location of the position of described escape orifice away from described escape orifice;
But tripping-gear, but described tripping-gear cooperates with the described recloser panel of common maintenance with described recloser panel and is in the described location that it does not close described escape orifice; And
Actuator; but described actuator is connected to described tripping-gear; be used for in the release of described vent unit part since the described preselected overpressure in the described protected field opened after, activate described mechanism and allow it close the position of described escape orifice from described setting movement basically to it according to its intrinsic elasticity to unclamp described recloser panel.
2. device as claimed in claim 1 is characterized in that described recloser panel is a spring steel material.
3. device as claimed in claim 2 is characterized in that described recloser panel is a rustproof spring steel.
4. device as claimed in claim 2 is characterized in that, the yield point and the difference between the tensile strength of described recloser panel are not more than about 30%.
5. device as claimed in claim 2 is characterized in that, the yield point and the tensile strength of described recloser panel are respectively at least about 1200N/mm 2With about 1450N/mm 2
6. device as claimed in claim 1 is characterized in that, described restricted clearance is provided with the parts that limit described escape orifice, and described recloser panel is provided with the edge section that is suitable for being fixed to the parts adjacent with described escape orifice.
7. device as claimed in claim 2 is characterized in that, described recloser panel is 1.4310 rustproof spring steels.
8. device as claimed in claim 2 is characterized in that it is thick that described recloser panel is about 0.8mm.
9. device as claimed in claim 1 is characterized in that, is provided with the parts that limit described escape orifice, and described recloser panel has the penetralia part that is suitable for being fixed to the parts adjacent with described escape orifice.
10. device as claimed in claim 9 is characterized in that, the described penetralia of described recloser panel partly is straight basically, but described recloser panel comprises from described penetralia part away from the continuous bend part that extends to described tripping-gear.
11. device as claimed in claim 10, it is characterized in that, the described continuous bend of described recloser panel comprises partly and the described straight adjacent sections of penetralia part that the curvature of described sections is greater than described recloser panel all the other sections away from described penetralia sections.
12. device as claimed in claim 1 is characterized in that, is fixed at least one member of described recloser panel but described tripping-gear is included in a side opposite with described escape orifice, and the maintenance structure that is connected to and extends away from described member.
13. device as claimed in claim 12, it is characterized in that described actuator comprises can be according to instruction manipulation to allow it turn back to the device that it closes the position of described escape orifice basically so that described recloser panel is unclamped described maintenance structure and the disconnection of described member.
14. device as claimed in claim 13 is characterized in that, described maintenance structure comprises hawser, and described device is can operate to unclamp the motor machine unit of described hawser according to described instruction.
15. device as claimed in claim 13 is characterized in that, described device comprises can be according to described instruction manipulation to cut off the cut-out sword device of described hawser.
16. device as claimed in claim 15 is characterized in that, described unit is a solenoid.
17. device as claimed in claim 1, it is characterized in that, be provided with and operate the sensor of under preselected overpressure, opening with the described release part of the described vent unit of sensing, but described sensor is connected to described actuator to survey the actuating of described tripping-gear, can close described flexible recloser panel thus.
18. device as claimed in claim 17 is characterized in that, described sensor can be operated with the time lag with the operating delay preliminary election of described actuator.
19. device as claimed in claim 18 is characterized in that, the described delay interval of described sensor optionally changes.
20. a bleeder that is used to protect restricted clearance, described device has the escape orifice that is used to remove overvoltage condition, and described bleeder comprises:
Vent unit, described vent unit are suitable for installing and having a release part of normally closed described escape orifice across described escape orifice, can operate to open during the predetermined excess pressure of described release part in standing described protected space;
Reclosing structure, described reclosing structure are installed on the described vent unit and at least roughly close described escape orifice with the described release part in described vent unit under situation about opening under the described preselected overpressure,
Described structure comprises the resilient flexibility recloser panel, and described recloser panel is in configuration and the position of closing described escape orifice at least basically in its normal state,
Described recloser panel is crooked and be arranged to not location in the position of closing described escape orifice basically away from described escape orifice;
But tripping-gear, but described tripping-gear cooperates with the described recloser panel of common maintenance with described recloser panel and is in the described location that it does not close described escape orifice; And
Actuator; but described actuator is connected to described tripping-gear; be used in the release of described vent unit part since the described preselected overpressure in the described protected field opened after; activate described mechanism with unclamp described recloser panel allow its according to its intrinsic elasticity from described setting movement to its described position; at this moment; along with described recloser panel moves to described described arrangement of closing described escape orifice basically, the described release of described vent unit partly turns back to described escape orifice.
21. device as claimed in claim 20 is characterized in that, described recloser panel is a spring steel material.
22. device as claimed in claim 21 is characterized in that, described recloser panel is a rustproof spring steel.
23. device as claimed in claim 22 is characterized in that, the yield point and the difference between the tensile strength of described recloser panel are not more than about 30%.
24. device as claimed in claim 23 is characterized in that, the yield point and the tensile strength of described recloser panel are respectively at least about 1200N/mm 2With about 1450N/mm 2
25. device as claimed in claim 20 is characterized in that, described restricted clearance is provided with the parts that limit described escape orifice, and described recloser panel is provided with the edge section that is adjacent to be fixed to described vent unit with described escape orifice.
26. device as claimed in claim 21 is characterized in that, described recloser panel is 1.4310 stainless steels.
27. device as claimed in claim 21 is characterized in that, it is thick that described recloser panel is about 0.8mm.
CN200780030296XA 2006-08-17 2007-05-10 High overpressure vent structure having spring steel recloser panel Expired - Fee Related CN101501379B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/465,274 US7556063B2 (en) 2006-08-17 2006-08-17 High overpressure vent structure having spring steel recloser panel
US11/465,274 2006-08-17
PCT/US2007/068670 WO2008147406A2 (en) 2006-08-17 2007-05-10 High overpressure vent structure having spring steel recloser panel

Publications (2)

Publication Number Publication Date
CN101501379A true CN101501379A (en) 2009-08-05
CN101501379B CN101501379B (en) 2013-05-29

Family

ID=39100236

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780030296XA Expired - Fee Related CN101501379B (en) 2006-08-17 2007-05-10 High overpressure vent structure having spring steel recloser panel

Country Status (12)

Country Link
US (1) US7556063B2 (en)
EP (1) EP2052176B1 (en)
JP (1) JP4796649B2 (en)
KR (1) KR101169838B1 (en)
CN (1) CN101501379B (en)
AU (1) AU2007354289B2 (en)
BR (1) BRPI0715916A2 (en)
CA (1) CA2657428C (en)
HK (1) HK1127389A1 (en)
MX (1) MX2009000764A (en)
PL (1) PL2052176T3 (en)
WO (1) WO2008147406A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104321574A (en) * 2012-04-03 2015-01-28 法克有限公司 Remote actuation of safety device
CN106122669A (en) * 2016-08-18 2016-11-16 大庆石化工程有限公司 Self-operated type pipe cap and self-operated type pipe cap mounting structure

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8322360B2 (en) * 2009-08-07 2012-12-04 Oklahoma Safety Equipment Company, Inc. Rupture panel
NO332916B1 (en) * 2010-01-08 2013-02-04 Ikm Dsc Engineering As Panel for offshore installations
KR101531410B1 (en) * 2013-11-01 2015-06-24 삼성중공업 주식회사 Rupture disk apparatus
JP6174068B2 (en) * 2015-03-19 2017-08-02 エスペック株式会社 Environmental test equipment
CN108087547A (en) * 2017-11-08 2018-05-29 天津金泰盛世石化设备有限公司 A kind of pressure vessel

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB326367A (en) * 1929-04-02 1930-03-13 Paul Eichin Improvements in or relating to relief valves
NL300717A (en) * 1963-11-20 1900-01-01
GB1305014A (en) * 1969-03-10 1973-01-31
JPS5546965U (en) * 1978-09-21 1980-03-27
US4276725A (en) * 1979-07-12 1981-07-07 Ash John E Method and apparatus for releasing an elevated pressure developed behind a wall
DE3114665C2 (en) 1981-04-10 1984-03-08 Kraftwerk Union AG, 4330 Mülheim Pressure relief opening on a spatially enclosed system in a building
US4403626A (en) * 1981-05-18 1983-09-13 Continental Disc Corporation Valve assembly
US4612739A (en) * 1981-12-07 1986-09-23 Continental Disc Corporation Low pressure venting panel
US4498261A (en) * 1981-12-07 1985-02-12 Continental Disc Corporation Low pressure venting panel
JPS5943395U (en) * 1982-09-14 1984-03-22 小松　明 Oil tank with fire extinguishing lid
JPS59199058A (en) * 1983-04-25 1984-11-12 株式会社クボタ Safety apparatus in scrap treating equipment
US4621945A (en) * 1985-01-11 1986-11-11 Schafer Christopher E Head control stand
US4821909A (en) 1988-03-10 1989-04-18 Fike Corporation Hygienic pressure relief panel unit
CN1053667A (en) * 1990-01-24 1991-08-07 中国人民解放军83509部队 Unidirectional membrance rupture valve
US5036632A (en) * 1990-05-14 1991-08-06 Bs&B Safety Systems, Inc. Pressure relief panel assembly
US6070365A (en) 1998-01-16 2000-06-06 Fike Corporation Multiple dome single-panel explosion vent
DE29803116U1 (en) * 1998-02-21 1998-05-07 Isa Ingenieurbuero Fuer Silo U Device for pressure relief in the event of an explosion-like pressure increase in a silo
US20040172889A1 (en) * 2003-03-04 2004-09-09 Tom Eijkelenberg Unitary overpressure vent panel structure
US7628167B2 (en) * 2006-08-17 2009-12-08 Fike Corporation Spring steel high overpressure vent structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104321574A (en) * 2012-04-03 2015-01-28 法克有限公司 Remote actuation of safety device
CN106122669A (en) * 2016-08-18 2016-11-16 大庆石化工程有限公司 Self-operated type pipe cap and self-operated type pipe cap mounting structure
CN106122669B (en) * 2016-08-18 2018-12-25 大庆石化工程有限公司 Self-operated type pipe cap and self-operated type pipe cap mounting structure

Also Published As

Publication number Publication date
CA2657428A1 (en) 2008-12-04
KR101169838B1 (en) 2012-07-30
MX2009000764A (en) 2009-01-28
WO2008147406A3 (en) 2009-02-05
JP2010501061A (en) 2010-01-14
AU2007354289B2 (en) 2012-11-15
EP2052176A2 (en) 2009-04-29
PL2052176T3 (en) 2013-05-31
BRPI0715916A2 (en) 2013-01-08
CN101501379B (en) 2013-05-29
US20080041473A1 (en) 2008-02-21
AU2007354289A1 (en) 2008-12-04
CA2657428C (en) 2014-02-11
KR20090027729A (en) 2009-03-17
HK1127389A1 (en) 2009-09-25
JP4796649B2 (en) 2011-10-19
US7556063B2 (en) 2009-07-07
EP2052176A4 (en) 2011-10-05
EP2052176B1 (en) 2012-11-21
WO2008147406A2 (en) 2008-12-04

Similar Documents

Publication Publication Date Title
CN101501379B (en) High overpressure vent structure having spring steel recloser panel
CN101506557B (en) Spring steel high overpressure vent structure
US7798893B2 (en) Full opening and reclosable explosion vent apparatus
US8807154B2 (en) Rupture disk
EP1957839B1 (en) Pressure relief device
KR20010086222A (en) Multiple dome single-panel explosion vent
US10975977B2 (en) Pressure relief module
RU2607540C2 (en) Bursting valve including plate with flexible tabs
US8656956B2 (en) Remote actuation of safety device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130529

Termination date: 20140510